Home / 12,447.03-17,176.86-6,781.80

Finding the Fourth Proportional to 12,447.03, 17,176.86 and 6,781.80

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Solution

The fourth proportional to 12,447.03, 17,176.86 and 6,781.80 is: 9,358.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,447.03 : 17,176.86 = 6,781.80 : x
  2. Step 2: Convert to fraction form
    12,447.03/17,176.86 = 6,781.80/x
  3. Step 3: Cross multiply
    12,447.03x = 17,176.86 × 6,781.80
  4. Step 4: Simplify right side
    12,447.03x = 116,490,029.15
  5. Step 5: Solve for x
    x = 116,490,029.15/12,447.03
  6. Step 6: Final answer
    x = 9,358.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.